A358254 - cp's OEIS frontend

A358254 Lexicographically earliest sequence of distinct nonnegative integers on a square spiral such that the sum of the eight numbers around any chosen number ends in the chosen number.

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	12
9	8
10	9
11	10
12	11
13	13
14	15
15	23
16	14
17	16
18	18
19	21
20	17
21	19
22	29
23	25
24	33
25	20
26	22
27	26
28	28
29	120
30	24
31	27
32	87
33	58
34	125
35	88
36	30
37	31
38	97
39	124
40	45
41	187
42	32
43	34
44	73
45	132
46	55
47	49
48	42
49	35
50	36
51	95
52	195
53	59
54	98
55	863
56	37
57	38
58	130
59	104
60	129
61	62
62	736
63	67
64	39
65	40
66	115
67	131
68	48
69	748
70	82
71	208
72	41

[0, 1, 2, 3, 4, 5, 6, 7, 12, 8, 9, 10, 11, 13, 15, 23, 14, 16, 18, 21, 17, 19, 29, 25, 33, 20, 22, 26, 28, 120, 24, 27, 87, 58, 125, 88, 30, 31, 97, 124, 45, 187, 32, 34, 73, 132, 55, 49, 42, 35, 36, 95, 195, 59, 98, 863, 37, 38, 130, 104, 129, 62, 736, 67, 39, 40, 115, 131, 48, 748, 82, 208, 41]

cp's OEIS Frontend

A358254 Lexicographically earliest sequence of distinct nonnegative integers on a square spiral such that the sum of the eight numbers around any chosen number ends in the chosen number.

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	12
9	8
10	9
11	10
12	11
13	13
14	15
15	23
16	14
17	16
18	18
19	21
20	17
21	19
22	29
23	25
24	33
25	20
26	22
27	26
28	28
29	120
30	24
31	27
32	87
33	58
34	125
35	88
36	30
37	31
38	97
39	124
40	45
41	187
42	32
43	34
44	73
45	132
46	55
47	49
48	42
49	35
50	36
51	95
52	195
53	59
54	98
55	863
56	37
57	38
58	130
59	104
60	129
61	62
62	736
63	67
64	39
65	40
66	115
67	131
68	48
69	748
70	82
71	208
72	41

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	12
9	8
10	9
11	10
12	11
13	13
14	15
15	23
16	14
17	16
18	18
19	21
20	17
21	19
22	29
23	25
24	33
25	20
26	22
27	26
28	28
29	120
30	24
31	27
32	87
33	58
34	125
35	88
36	30
37	31
38	97
39	124
40	45
41	187
42	32
43	34
44	73
45	132
46	55
47	49
48	42
49	35
50	36
51	95
52	195
53	59
54	98
55	863
56	37
57	38
58	130
59	104
60	129
61	62
62	736
63	67
64	39
65	40
66	115
67	131
68	48
69	748
70	82
71	208
72	41

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	12
9	8
10	9
11	10
12	11
13	13
14	15
15	23
16	14
17	16
18	18
19	21
20	17
21	19
22	29
23	25
24	33
25	20
26	22
27	26
28	28
29	120
30	24
31	27
32	87
33	58
34	125
35	88
36	30
37	31
38	97
39	124
40	45
41	187
42	32
43	34
44	73
45	132
46	55
47	49
48	42
49	35
50	36
51	95
52	195
53	59
54	98
55	863
56	37
57	38
58	130
59	104
60	129
61	62
62	736
63	67
64	39
65	40
66	115
67	131
68	48
69	748
70	82
71	208
72	41